Methods and devices for predictive maintenance of road vehicle components
AssigneeVitesco Technologies GmbH
InventorsDominique Martineau, Jean-Pierre Arocena, Olivier Manns, Nicolas Terral
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Abstract
Disclosed are methods and devices for predictive maintenance of at least one component of a road vehicle. The general principle is based on the combination of the ranges of values of parameters that represent the wear of a road vehicle component. The method includes observing the duration of use of combinations of ranges of values in order to deduce therefrom a wear profile which is compared with a predetermined wear profile. This mechanism makes it possible to reduce the amount of information to be stored.
Claims19
A method for predictive maintenance of a plurality of components of a road vehicle, each of the components being connected to a computer, the road vehicle comprising a predictive maintenance display unit connected to the computer, the method comprising:
- identifying, by operation of the computer, a plurality of predetermined wear parameters, each of which represents wear of a given one of the components, each of the wear parameters taking a value in a predetermined range of wear values corresponding to the component with which a given said wear parameter is associated,
- dividing each said predetermined range of wear values, by operation of the computer, into a plurality of predetermined wear value intervals,
- combining, by operation of the computer, at least some of the wear value intervals associated with a first of the components with at least some of the wear value intervals associated with a second of the components, according to a first predetermined combination pattern, so as to obtain a plurality of intervals of combination of wear parameters,
- determining, by operation of the computer, a duration of use of each said interval of combination of wear parameters as a function of at least one distance traveled by the road vehicle, so as to obtain a determined wear profile,
- comparing the determined wear profile, by operation of the computer, with a predetermined wear profile, and
- giving a warning, by operation of the computer, via the predictive maintenance display unit upon detecting that the determined wear profile diverges from the predetermined wear profile.
A device for the predictive maintenance of a plurality of components of a road vehicle, the device comprising a computer arranged to be connected to each of the components and also connected to a predictive maintenance display unit, wherein the computer is configured for:
- identifying a plurality of predetermined wear parameters, each of which represents wear of a given one of the components, each of the wear parameters taking a value in a predetermined range of wear values corresponding to the component with which a given said wear parameter is associated,
- dividing each said predetermined range of wear values into a plurality of predetermined wear value intervals,
- combining at least some of the wear value intervals associated with a first of the components with at least some of the wear value intervals associated with a second of the components, according to a first predetermined combination pattern, so as to obtain a plurality of intervals of combination of wear parameters,
- determining a duration of use of each said interval of combination of wear parameters as a function of at least one distance traveled by the road vehicle, so as to obtain a determined wear profile,
- comparing the determined wear profile with a predetermined wear profile, and
- giving a warning via the predictive maintenance display unit upon detecting that the determined wear profile diverges from the predetermined wear profile.
Dependencies are inferred from the claim text.